如何使用 MIME/SMTP 和电子邮件附加 CSV 文件？

Question

我正在尝试附加一个 CSV 文件并通过电子邮件发送。

目前，我正在执行以下操作，但它只是附加一个空的 CSV 文件，而不是附加我在同一目录中的 CSV 文件：

import smtplib

from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email.utils import COMMASPACE
from email import encoders


def email_attachment():
    SUBJECT = 'Subject string'

    msg = MIMEMultipart()
    msg['From'] = 'my_email@yahoo.com'
    msg['To'] = COMMASPACE.join(['recepient_email@gmail.com'])
    msg['Subject'] = SUBJECT

    part = MIMEBase('application', "octet-stream")
    #    I have a CSV file named `attachthisfile.csv` in the same directory that I'd like to attach and email
    part.set_payload(open("./attachthisfile.csv", "rb").read())
    encoders.encode_base64(part)

    part.add_header('Content-Disposition', 'attachment', filename='attachthisfile.csv')

    msg.attach(part)

    smtpObj = smtplib.SMTP('smtp.mail.yahoo.com', 587)
    smtpObj.ehlo()
    smtpObj.starttls()
    smtpObj.login('my_email@yahoo.com', 'myemailpassword')
    smtpObj.sendmail('my_email@yahoo.com', 'recepient_email@gmail.com', msg.as_string())

    smtpObj.quit()

所以我的问题是，我做错了什么？如何将 CSV 文件附加到同一目录和电子邮件中，而不是创建一个空的 CSV 文件并将其命名为相同，然后通过电子邮件发送？

Answer 1

问题。所以我的问题是，我做错了什么？

你的代码对我有用，没有错。

请编辑您的问题并添加以下输出：

def environ():
    import os
    for f in os.listdir('.'):
        print('%s\tuid=%s,\tgid=%s,\tsize=%s' % (f, os.stat(f)[4], os.stat(f)[5], os.stat(f)[6])  )  

确保从相同的*.py 文件和相同的def email_attachment() 运行它

def email_attachment():
    environ()
    #...

Answer 2

问题似乎出在这一行：

part.add_header('Content-Disposition', 'attachment; filename=“attachthisfile.csv"')

它在filename= 之后包含一个非 ASCII 字符“\xe2”。这是旧的ascii encoding 问题，在这种情况下是：“ vs "

附带说明，您还可以更改 add_header 参数以匹配此Python docs example：

part.add_header('Content-Disposition', 'attachment', filename='attachthisfile.csv')

完整的工作示例：

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email.utils import COMMASPACE
from email import encoders

SUBJECT = 'Subject string'
FILENAME = 'attachthisfile.csv'
FILEPATH = './attachthisfile.csv'
MY_EMAIL = 'example@yahoo.com'
MY_PASSWORD = '********************'
TO_EMAIL = 'example@gmail.com'
SMTP_SERVER = 'smtp.mail.yahoo.com'
SMTP_PORT = 587

msg = MIMEMultipart()
msg['From'] = MY_EMAIL
msg['To'] = COMMASPACE.join([TO_EMAIL])
msg['Subject'] = SUBJECT

part = MIMEBase('application', "octet-stream")
part.set_payload(open(FILEPATH, "rb").read())
encoders.encode_base64(part)
part.add_header('Content-Disposition', 'attachment', filename=FILENAME)  # or
# part.add_header('Content-Disposition', 'attachment; filename="attachthisfile.csv"')
msg.attach(part)

smtpObj = smtplib.SMTP(SMTP_SERVER, SMTP_PORT)
smtpObj.ehlo()
smtpObj.starttls()
smtpObj.login(MY_EMAIL, MY_PASSWORD)
smtpObj.sendmail(MY_EMAIL, TO_EMAIL, msg.as_string())
smtpObj.quit()

编辑：添加完整示例